Property：flakes, powder, bulk, granular to
dissolve easily in water, do not dissolve in the aqueous solution as the
acidity, dehydrating temperature at 86.5 ℃, heat to 250 ℃
lose to crystal, heat to 300℃ the beginning of resolve,
heat to 770 ℃
resolve to AL2O3, SO3, etc.
Having no water has the chatoyant and white crystal in pearl.

Usage：It
is used for primarily high class paper white manufacturing, still used for
flocculate agent with drinking water, industry using water and waste water processing;
Producing the catalyst carries, artificial precious stone with other aluminum
salt etc. Extensive used as the grease clarifier, the petroleum deodorization
takes off color, concrete waterproof an etc.